Pinhole lens for Nikon with replaceable tinfoil for different apertures !!!Print in Black otherwise you will have a bad color cast!!! UPDATE 03.09.11 V1 Tested lose fit Printed in blue bad color cast Hard to separate cap from base Moved the mount point up 1mm.(fix lose fit) Made Lock-rings 1mm longer (fix lose fit) Made the radius of the base cover the entire mount surface(light leeks) Increased the radius of the cap (light leeks) Added holes in the cap for ballpoint pen to separate cap and base Files Updated 03.09.11 21:40 GMT -7 Uploaded V2 Inventor files ( have not tried to print these). This was based off the original design so should work. I cant find the V1 Files :/ Some Sanding Required to make cap fit (dont put together right after printing I almost got them stuck together) I used an aluminium can. a thumbtack and sandpaper to make the pin-hole.